Skip to content
ReviewPilotLy

10 Best Fuses For String Lights in 2026

This guide compares the top fuses for string lights including VEXUNGA and BOJACK kits to help you choose the right replacement for your holiday decorations

As an Amazon Associate we earn from qualifying purchases. We may earn a commission when you buy through links on this page, at no additional cost to you. Read our affiliate disclosure.As an Amazon Associate we earn from qualifying purchases.Purchases through our links may earn us a commission, at no extra cost to you. Read our affiliate disclosure.
In this guide
  1. 01Top 3 picks
  2. 02Compare all 10
  3. 03In-depth reviews
  4. 04Buying guide
  5. 05Use and care
  6. 06Common questions
  7. 07Final verdict

Holiday lights transform spaces into festive wonders but blown fuses can ruin the magic. Finding the right replacement fuse ensures your displays stay bright and safe throughout the season.

We compared ten highly rated fuse kits based on variety, build quality, and customer feedback. Each product offers unique benefits for different light sets and user needs.

Every pick highlights key specs, pros, and cons to simplify your decision. Prices fluctuate so check current listings before buying to ensure the best value for your budget.

Top 3 Picks for Best Fuses for String Lights

Best Budget

smseace 3A Christmas Light Fuses 20Pack
smseace 3A Christmas Light Fuses 20Pack

4.4Editor score

20 pack 3 amp fuses
125 volt glass construction
Easy installation design

Check price

Editor's Choice

VEXUNGA 5 Values 100 Pcs 125V Christmas Light Fuses Kit
VEXUNGA 5 Values 100 Pcs 125V Christmas Light Fuses Kit

4.6Editor score

100 piece variety kit
Two common fuse sizes included
Labeled storage boxes

Check price

Best Premium

125V Christmas Light Fuses 2.5A 3A 5A 7A 8A 10A 15A Glass Fuse Kit
125V Christmas Light Fuses 2.5A 3A 5A 7A 8A 10A 15A Glass Fuse Kit

4.8Editor score

Wide amperage range
Fast blow safety design
Sturdy labeled packaging

Check price

Top 10 Best Fuses for String Lights in 2026 Compared

This side-by-side comparison highlights key specifications across all ten selected fuse kits. Review dimensions, amperage options, and packaging to find the perfect match for your string lights.

ProductsSpecificationsEditor scorePrice
1VEXUNGA 5 Values 100 Pcs Kit

Editor's Choice

VEXUNGA 5 Values 100 Pcs Kit
5 values 100 pieces
125 volt rating
5x20mm and 3.6x10mm
Glass material
4.6Editor score

Check price

2120Pcs Christmas Light Fuses 9 Values

Editor's Choice

120Pcs Christmas Light Fuses 9 Values
120 pieces total
9 different values
125V fast blow
Transparent storage box
4.6Editor score

Check price

3smseace 3A Christmas Light Fuses 20Pack

Best Budget

smseace 3A Christmas Light Fuses 20Pack
20 pieces 3 amp
125 volt max
3.6x10mm size
Glass construction
4.4Editor score

Check price

4BOJACK Christmas Light fuses 5x20mm Kit

BOJACK Christmas Light fuses 5x20mm Kit
60 pieces assortment
3A 5A 7A 2.5A
125V rating
Plastic storage case
4.6Editor score

Check price

5VEXUNGA 20pcs 5A 125V Kit

VEXUNGA 20pcs 5A 125V Kit
20 pieces 5 amp
125 volt max
5x20mm size only
Sturdy box packaging
4.6Editor score

Check price

6BOJACK F5AL125V 5x20 mm 5 A

BOJACK F5AL125V 5×20 mm 5 A
10 pieces 5 amp
125V fast blow
5x20mm dimension
Plastic case
4.5Editor score

Check price

7BOJACK Mini Fuse 3.6x10mm 3A

BOJACK Mini Fuse 3.6x10mm 3A
20 pieces 3 amp
125V fast blow
3.6x10mm size
Plastic storage case
4.4Editor score

Check price

8125V Christmas Light Fuses 2.5A to 15A Kit

125V Christmas Light Fuses 2.5A to 15A Kit
Assortment kit
Wide amp range
125V rating
Labeled storage
4.8Editor score

Check price

9SIXQJZML 10 Pack F5AL

SIXQJZML 10 Pack F5AL
10 pieces 5 amp
125V glass fuse
5x20mm size
Clear plastic box
4.6Editor score

Check price

10VEXUNGA 7 Values 100 Pcs Kit

VEXUNGA 7 Values 100 Pcs Kit
100 pieces total
7 different values
125V rating
Labeled storage boxes
4.5Editor score

Check price

1. VEXUNGA 5 Values 100 Pcs Kit – Best Overall Variety

VEXUNGA 5 Values 100 Pcs 125V Christmas Light Fuses Kit 5x20MM 3A 5A 125 Volt Max Fuse and 3.6X10MM ts-66 2.5 3 5 Amp 125V Mini Glass Fuses Replacement for Outdoor C9 String Xmas Lights Fan4.6Editor scoreCheck price on Amazon
VEXUNGA 5 Values 100 Pcs Kit
100 pieces total count
Two fuse sizes included
125 volt rating
Glass fuse material

This kit offers 100 fuses across five values to cover most holiday lighting needs. Users praise the variety and organized storage boxes that make finding replacements simple.

Pros

  • High quantity for bulk needs
  • Labeled boxes for storage
  • Compatible with many light types
  • Sturdy glass construction

Cons

  • May include unused amperage values
  • Bulk size takes drawer space

We may earn a commission when you buy through this link, at no additional cost to you.

The inclusion of both 5x20mm and 3.6x10mm sizes ensures compatibility with standard string lights. The 125V rating matches most household holiday light plugs perfectly.

Some users note the bulk packaging requires dedicated storage space. However the value per fuse remains competitive compared to single packs.

Ideal for homeowners managing multiple light sets across yards and trees. The quantity ensures you won’t run out mid-season.

Storage Organization

Each fuse model is packaged in labeled boxes for easy identification and quick access.

Versatile Sizing

Two common sizes included cover most C7 C9 and mini string light fuse requirements.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

2. 125V Christmas Light Fuses Kit – Premium Amperage Range

125V Christmas Light Fuses 2.5A 3A 5A 7A 8A 10A 15A Glass Fuse Kit4.8Editor scoreCheck price on Amazon
125V Christmas Light Fuses 2.5A to 15A Kit
Wide 5 range
Fast blow design
125V rating
Labeled storage box

This kit stands out with an extensive range of amperages from 2.5A to 15A. Customers highlight the fast blow design as a key safety benefit.

Pros

  • Highest rated product overall
  • Includes high amp options
  • Fast blow safety feature
  • Clear organization system

Cons

  • Higher price point
  • Large amperages less common

We may earn a commission when you buy through this link, at no additional cost to you.

The variety ensures you have the right fuse for heavier duty light strings or specialized equipment. The labeled storage keeps everything organized for future use.

While priced higher than basic kits the quality and selection justify the cost for serious decorators. Some users note higher amp fuses are rarely needed for standard lights.

Best for professional decorators or those with varied electrical loads. The safety features offer peace of mind for large installations.

Safety Design

Fast blow technology quickly breaks circuits under overload to protect equipment and prevent overheating.

High Amp Options

Includes 10A and 15A fuses for specialized lighting setups requiring higher current capacity.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

3. smseace 3A Christmas Light Fuses 20Pack – Best Budget Single Value

smseace 3A Christmas Light Fuses 20Pack 3A 3AMP 125 Volt Fuse 0.14 x0.39 inch /3.6x10mm 3 amp 125 Volt Fuse for String Lights4.4Editor scoreCheck price on Amazon
smseace 3A Christmas Light Fuses 20Pack
20 pieces count
3 amp current
125 volt rating
Glass material

A budget friendly option providing twenty 3A fuses ideal for standard string lights. Buyers appreciate the low cost and reliable performance.

Pros

  • Affordable price point
  • Sufficient for standard lights
  • Easy to install
  • Durable glass build

Cons

  • Single amperage limit
  • Limited to 3A needs

We may earn a commission when you buy through this link, at no additional cost to you.

Designed for simple installations replacing faulty fuses quickly. The glass construction ensures durability in various weather conditions.

Restricted to 3A f this kit suits most mini lights but not heavier loads. Some users may need multiple packs for larger collections.

Perfect for casual users needing a quick fix for minor light sets. The value makes it easy to keep spares on hand.

Installation Ease

Simple swap design allows users to replace old fuses in seconds without tools.

Weather Resistant

Robust glass construction handles outdoor conditions ensuring long lasting performance.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

4. 120Pcs Christmas Light Fuses 9 Values – High Count Assortment

120Pcs Christmas Light Fuses 9 Values 125V Fast Blow Glass Fuse Assortment Kit 3.6X10mm 1 2.5 3 5 A 5x20mm 3 4 5 7 8A Mini Glass Fuses for Christmas Tree Mini LED Outdoor String Lights4.6Editor scoreCheck price on Amazon
120Pcs Christmas Light Fuses 9 Values
120 pieces total
Nine values included
125V fast blow
Transparent case

Offering 120 pieces across nine values this kit covers diverse lighting needs. Users note the transparent case helps track inventory easily.

Pros

  • Large quantity for bulk
  • Clear storage box
  • Wide variety of values
  • 125V standard

Cons

  • Case may be bulky
  • Mixed sizes to manage

We may earn a commission when you buy through this link, at no additional cost to you.

The mix of 5x20mm and 3.6x10mm fuses adapts to various light sets. High count ensures ample spares for multiple seasons.

The case size requires storage space but organization is excellent. Some users find managing mixed sizes slightly tedious.

Ideal for households with mixed lighting types. The variety ensures compatibility with different brands and models.

Inventory Tracking

Transparent plastic case allows quick visual checks of remaining stock without opening the box.

Light Variety

Nine amperage values match a wide range of LED and incandescent light sets.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

5. BOJACK Christmas Light fuses 5x20mm Kit – Compact Variety

BOJACK Christmas Light fuses 5x20mm 125V 3A 5A 7A Fuse Fast-Blow Glass Fuses 3.6X10mm Mini Fuse 125V 2.5A 3A 5A amp Fuses Assortment Kit, BJ-125V-6V60P4.6Editor scoreCheck price on Amazon
BOJACK Christmas Light fuses 5x20mm Kit
60 pieces total
Six amperage options
125V rating
Plastic case

A solid middle ground offering 60 fuses in a portable case. Buyers like the mix of sizes and amperages.

Pros

  • Compact storage case
  • Good mid range value
  • Standard fuse sizes
  • Fast blow safety

Cons

  • Fewer pieces than bulk kits
  • Case durability varies

We may earn a commission when you buy through this link, at no additional cost to you.

The 125V rating aligns with standard plugs. Fast blow design protects circuits from surges effectively.

Some find the case smaller than competitors but sufficient for typical needs. Durability is decent for home use.

Suitable for average households with moderate lighting setups. The variety supports most common light replacements.

Portability

Compact plastic case fits easily in storage bins or tool kits for easy transport.

Protection

Fast blow technology interrupts power quickly to prevent damage during electrical spikes.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

6. VEXUNGA 20pcs 5A 125V Kit – Targeted Replacement

VEXUNGA 20pcs 5A 125V Christmas Light Fuses 5 Amp 125 Volt Max Glass Fuses Replacement for Outdoor C9 String Xmas Lights (5x20MM / 0.2x0.79Inch)4.6Editor scoreCheck price on Amazon
VEXUNGA 20pcs 5A 125V Kit
20 pieces 5 amp
125V max
5x20mm size
Sturdy box

This pack delivers twenty 5A fuses ideal for outdoor C9 sets. Users value the reliability of the VEXUNGA brand.

Pros

  • Focused amperage option
  • Reliable brand
  • Clear labeling
  • Compact packaging

Cons

  • Limited to one amperage
  • May need multiple packs

We may earn a commission when you buy through this link, at no additional cost to you.

The 5x20mm size fits many standard outdoor string lights. Clear labeling on the box ensures easy identification.

Limited to 5A means you must confirm requirements before buying. Some users combine with 3A packs for versatility.

Best for specific upgrades or replacements where 5A is required. The brand reputation adds confidence.

Brand Reliability

VEXUNGA is known for durable glass fuses that perform consistently in varying conditions.

Outdoor Focus

5A amperage specifically targets heavy duty outdoor lights like C9 bulb strings.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

7. BOJACK F5AL125V 5×20 mm 5 A – Small Pack Option

BOJACK F5AL125V 5x20 mm 5 A 125 V fuses 0.2x0.78 Inch 5 amp 125 Volt Fast-Blow Glass Fuses (Pack of 10)4.5Editor scoreCheck price on Amazon
BOJACK F5AL125V 5×20 mm 5 A
10 pieces count
5 amp rating
125V fast blow
Plastic case

A ten piece pack of 5A fuses perfect for minor replacements. Buyers note it is affordable and fits neatly in drawers.

Pros

  • Compact for small needs
  • Good value for price
  • Standard size
  • Clear storage

Cons

  • Lower quantity
  • Limited to 5A

We may earn a commission when you buy through this link, at no additional cost to you.

The 5x20mm size works with most larger bulb strings. Fast blow protection ensures safety for connected circuits.

Some users find 10 pieces too few for large projects. It is better suited for emergency spares.

Great for quick repairs on single light sets. The small footprint saves storage space.

Emergency Spares

Small pack size makes it convenient to keep a spare in a toolbox or drawer.

Value

Affordable pricing per unit makes this an attractive choice for small scale needs.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

8. BOJACK Mini Fuse 3.6x10mm 3A – Mini Light Focus

BOJACK Mini Fuse 3.6x10mm 3A 3amp 125V 0.14x0.39 Inch F3AL125V Fast-Blow Glass Fuses (Pack of 20)4.4Editor scoreCheck price on Amazon
BOJACK Mini Fuse 3.6x10mm 3A
20 pieces 3 amp
3.6x10mm size
125V rating
Glass construction

This pack provides twenty 3A mini fuses ideal for standard LED strings. Buyers appreciate the compact design and ease of use.

Pros

  • Fits mini lights well
  • Compact packaging
  • Standard voltage
  • Reliable brand

Cons

  • Only 3.6x10mm size
  • Limited amperage options

We may earn a commission when you buy through this link, at no additional cost to you.

The 3.6x10mm dimension matches mini bulb sets. Fast blow technology prevents overheating risks.

Not suitable for larger fuses so verify light requirements first. Some users combine with larger size kits.

Perfect for indoor or small outdoor mini light displays. The brand ensures quality consistency.

Mini Compatibility

Specifically sized for mini light sets commonly found in indoor holiday decor.

Quick Fix

Pack of twenty allows multiple replacements for long strands without buying bulk kits.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

9. SIXQJZML 10 Pack F5AL – Simple Single Value

SIXQJZML 10 Pack F5AL Fast-Blow Fuse 5A Max 5 amp 125V Glass Fuses 0.2 x 0.78 Inch / 5 x 20 mm (125Volt) (F5A)4.6Editor scoreCheck price on Amazon
SIXQJZML 10 Pack F5AL
10 pieces 5 amp
5x20mm size
125V rating
Clear plastic box

A straightforward 10 pack of 5A fuses for standard replacements. Customers highlight the clear labeling and simple box.

Pros

  • Simple straightforward packaging
  • Clear labeling
  • Standard specs
  • Quick delivery

Cons

  • Small pack count
  • No size variety

We may earn a commission when you buy through this link, at no additional cost to you.

The 5x20mm size fits many C7 and C9 strings. Packaging keeps fuses protected and organized.

Low count means fewer spares for large projects. Ideal for targeted small scale fixes.

Best for users needing a quick and simple solution for specific light types.

Simplicity

Single value packaging reduces confusion and speeds up the replacement process.

Clear Labeling

Labels make verifying the correct amperage and voltage fast and easy.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

10. VEXUNGA 7 Values 100 Pcs Kit – Advanced Assortment

VEXUNGA 7 Values 100 Pcs Christmas Light Fuses Kit 3A 5A 7A 8A 125V 5x20mm Max Fuse 2.5 3 5 Amp 125 Volt 3.6x10mm Mini Glass Round Tube Fusibles Replacement Fan C7 C9 Bulb String4.5Editor scoreCheck price on Amazon
VEXUNGA 7 Values 100 Pcs Kit
100 pieces total
Seven values included
125V rating
Dual size kits

This kit provides 100 fuses across seven values for extensive needs. Users appreciate the wide range and brand reliability.

Pros

  • Comprehensive value range
  • High quantity
  • Two sizes covered
  • Reliable brand

Cons

  • Complex sorting needed
  • Larger storage demand

We may earn a commission when you buy through this link, at no additional cost to you.

Includes both 5x20mm and 3.6x10mm fuses. The 125V rating matches standard requirements.

Sorting may take time but the variety supports large collections. Some users prefer pre-sorted kits.

Ideal for serious decorators managing multiple light systems. The stock ensures preparedness for any fuse failure.

Advanced Variety

Seven amperage values cover almost any standard lighting circuit requirement.

Bulk Savings

100 piece count offers significant savings per fuse compared to smaller packs.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

Buying Guide – How to Choose the Best Fuses for String Lights

Selecting the right fuse requires checking your light's voltage and amperage. Use this guide to understand key factors before buying.

Amperage Compatibility

Check the label on your light plug for the amp rating. Common values are 3A and 5A for string lights.

Always match the exact amperage to avoid circuit damage or insufficient protection.

Fuse Size

Most holiday lights use 5x20mm or 3.6x10mm glass fuses. Measure your existing fuse if unsure.

Buying kits with both sizes ensures you have the right fit for mixed light sets.

Voltage Rating

Ensure the fuse voltage matches your power source. 125V is standard for household holiday decorations.

Using a lower voltage fuse risks failure during standard household power usage.

Quantity Needs

Calculate how many light strings you manage. Bulk kits offer better value for large outdoor displays.

Single packs work for quick repairs but may need multiple purchases for big projects.

Packaging and Storage

Labeled boxes or cases help organize different fuse types. Clear containers allow easy visual checks.

Proper storage keeps fuses from getting lost or mixed up during peak season.

Safety Features

Fast blow fuses break circuits quickly during overloads to prevent fires. This is critical for outdoor safety.

Prioritize fuses with clear safety ratings to ensure reliable performance.

Material Quality

Look for sturdy glass construction that resists cracking. High quality materials ensure longevity.

Avoid cheap fuses that break easily as they compromise circuit protection.

Brand Reputation

Choose established brands like VEXUNGA or BOJACK for consistent quality. Check reviews for reliability.

Trusted brands often offer better customer support and quality control.

How to Use and Care for Your Fuses for String Lights

Unplug your light set completely before replacing any fuse. Safety is the top priority to avoid electrical shock.

Remove the old fuse from the plug and insert the new one in the same direction. Secure the cap tightly.

Store spare fuses in a dry labeled container away from moisture. Check them annually for damage before use.

Frequently Asked Questions

What happens if I use a fuse with wrong amperage?

Using a higher amperage fuse can lead to overheating and potential fire hazards. Lower amperage fuses will blow too frequently causing constant outages.

Can I use glass fuses for LED lights?

Yes standard glass fuses work for LED lights if the amp and voltage ratings match. LEDs use less power so standard fuses protect safely.

Where can I find the voltage rating on my lights?

The voltage is usually printed on the plug or a label near the bulb sockets. Look for 120V or 125V markings on the device.

How do I know if my fuse is blown?

A blown fuse will show a broken metal wire inside the glass tube. The light string will stop working entirely if one fuse fails.

Are fast blow fuses better than slow blow?

Fast blow fuses react quickly to current spikes protecting circuits from overheating. They are generally safer for holiday lighting setups.

Can I mix different fuse brands in one kit?

It is recommended to use fuses from the same kit to ensure consistent quality. Mixing brands may lead to uneven performance or failure.

What tools do I need to replace a fuse?

Most fuses can be replaced by hand without tools. Ensure the plug is unplugged and the cap is accessible before removal.

How long do fuses last before needing replacement?

Fuses typically last years unless exposed to power surges or physical damage. Inspect them yearly to ensure they remain intact.

Final Thoughts on Choosing the Best Fuses for String Lights

We reviewed ten kits offering diverse options from single value packs to large assortments. VEXUNGA and BOJACK lead the list for reliability and variety.

Prioritize matching amperage and voltage first. Consider quantity and storage if you manage large outdoor displays.

Always check current prices and listings before purchasing to confirm availability and value for your needs.